我完全按照hadoop官网上的步骤操作，但是总是报如下错误:startingnamenode,loggingto/home/videni/Tools/hadoop-1.0.3/libexec/../logs/hadoop-videni-namenode-videni-Latitude-E6400.outcat:/usr/lib/hadoop-0.20.2/conf/slaves:Nosuchfileordirectorycat:/usr/lib/hadoop-0.20.2/conf/masters:Nosuchfileordirectorystartingjobtracker,logg